Angle-adjusting transmission structure

Abstract

The utility model relates to transmission structure technical field discloses an angle transmission structure, including work table, first pivot, second pivot, linkage assembly, locating post and connecting sleeve. First pivot and second pivot are rotatable respectively set up on work table, and second pivot sets up in one side of first pivot, linkage assembly connects first pivot and second pivot, and linkage assembly is used for the linkage rotation of first pivot and second pivot, locating post sets up in the outer peripheral surface of first pivot, connecting sleeve is set up in the end of first pivot, and with first pivot carries out detachable connection, the end of first pivot is set up with opening in the connecting sleeve sleeve, and the opening is matched with locating post and is clamped and cooperates, and the caliber of opening is narrowed from outside to inside in the axial direction of connecting sleeve.

Description

Technical Field

[0001] This utility model relates to the field of angle adjustment transmission technology, specifically an angle adjustment transmission structure. Background Technology

[0002] The angle-adjustable transmission structure is particularly suitable for furniture and equipment such as office desks. By integrating this transmission structure into an office desk, it can be equipped with an angle-adjustable function, thereby meeting the user's need to adjust the desktop angle according to individual needs, improving user comfort and work efficiency.

[0003] The existing angle adjustment transmission structure still has the following problems: traditional structures mostly use simple axial connection or gear transmission to achieve the angle adjustment function, but in actual applications, there is usually a certain assembly gap between the connecting parts. This gap is prone to causing shaking and vibration during the angle adjustment process, which in turn affects the stability of the transmission system.

[0004] Therefore, there is an urgent need for an angle-adjusting transmission structure to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide an angle-adjusting transmission structure to solve the problem of low stability of traditional angle-adjusting transmission structures.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an angle-adjusting transmission structure, comprising:

[0007] Workbench;

[0008] The first rotating shaft and the second rotating shaft are rotatably mounted on the worktable, with the second rotating shaft located on one side of the first rotating shaft;

[0009] A linkage component connects the first rotating shaft and the second rotating shaft, and the linkage component is used for the linkage rotation of the first rotating shaft and the second rotating shaft;

[0010] A positioning post is disposed on the outer peripheral surface of the first rotating shaft;

[0011] A connecting sleeve is fitted onto the end of the first rotating shaft and is detachably connected to the first rotating shaft; the end of the connecting sleeve fitted onto the first rotating shaft has an opening, the opening is adapted to and engaged with the positioning post, and the diameter of the opening narrows from the outside to the inside in the axial direction of the connecting sleeve.

[0012] As a preferred embodiment of the angle-adjusting transmission structure, the linkage component includes a first connecting tooth and a second connecting tooth. The first connecting tooth is sleeved on the axial surface of the first rotating shaft, and the second connecting tooth is sleeved on the axial surface of the second rotating shaft. The first connecting tooth and the second connecting tooth mesh with each other.

[0013] As a preferred embodiment of the angle-adjusting transmission structure, the first connecting tooth and the first rotating shaft are connected by a fastener and a spring washer. The fastener is tightened onto the first rotating shaft, and the spring washer is sleeved on the first rotating shaft. The two ends of the spring washer abut against the first connecting tooth and the fastener, respectively.

[0014] As a preferred embodiment of the angle-adjusting transmission structure, the axial surface of the second rotating shaft is positioned with a positioning piece, and the positioning piece has a bayonet.

[0015] As a preferred embodiment of the angle-adjusting transmission structure, it further includes a drive source, the drive end of which extends into the other end of the connecting sleeve away from the first rotating shaft, and the drive source is used to drive the first rotating shaft to rotate.

[0016] As a preferred embodiment of the angle-adjusting transmission structure, it further includes an electrical connection assembly disposed on the worktable, the electrical connection assembly being used to control the rotation of the first rotating shaft.

[0017] As a preferred embodiment of the angle-adjusting transmission structure, the electrical connection assembly includes a flange, an electrical connector, and an electrical connector piece. The flange is disposed on the outer peripheral surface of the connecting sleeve, the electrical connector is fixed to the flange, and the electrical connector pieces are respectively positioned on both sides of the connecting sleeve. When the connecting sleeve rotates with the first rotating shaft, it drives the electrical connector to rotate and contact any of the electrical connector pieces, forming an electrical signal path and preventing the first rotating shaft from continuing to rotate.

[0018] As a preferred embodiment of the angle-adjusting transmission structure, it further includes a positioning seat, which is positioned on the top surface of the worktable. The first rotating shaft and the second rotating shaft are rotatably disposed on one side of the positioning seat, and the linkage component is disposed on the other side of the positioning seat. A through groove is provided on the positioning seat.

[0019] As a preferred embodiment of the angle-adjusting transmission structure, it further includes a first positioning plate and a second positioning plate, both of which are disposed on the worktable. The first rotating shaft is disposed between the positioning seat and the first positioning plate, and the second rotating shaft is disposed between the positioning seat and the second positioning plate.

[0020] As a preferred embodiment of the angle-adjusting transmission structure, the first rotating shaft is connected to the positioning seat and the first positioning plate respectively through a first gasket, and the second rotating shaft is connected to the positioning seat and the second positioning plate respectively through a second gasket.

[0021] The beneficial effects of this utility model are as follows: by engaging the positioning pin with the opening of the connecting sleeve, and with the opening diameter narrowing from the outside to the inside, a reliable clamping structure is formed, which effectively eliminates the gap between the components and greatly enhances the rigidity of the structural connection. This significantly reduces vibration during angle adjustment, effectively improves transmission stability, reduces motion deviation, and achieves high-precision transmission. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of an angle-adjusting transmission structure provided by this utility model;

[0023] Figure 2 A top view of an angle-adjusting transmission structure provided by this utility model;

[0024] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0025] Figure 4 A schematic diagram of the overall structure of the connecting sleeve in an angle-adjusting transmission structure provided by this utility model;

[0026] Figure 5 This utility model provides an overall structural diagram of the positioning seat mounting elastic element in an angle-adjusting transmission structure.

[0027] The following are the labeling elements in the figure:

[0028] 1. Worktable; 2. First rotating shaft; 3. Second rotating shaft;

[0029] 4. Linkage component; 401. First connecting tooth; 402. Second connecting tooth;

[0030] 5. Positioning pin; 6. Connecting sleeve; 7. Opening; 8. Drive source; 9. Positioning seat; 10. Through groove; 11. First positioning plate; 12. Second positioning plate; 13. First gasket; 14. Second gasket; 15. Positioning piece; 16. Bayonet;

[0031] 17. Electrical connection assembly; 1701. Lug; 1702. Electrical connector; 1703. Electrical connector piece;

[0032] 18. Elastic element; 19. Spring washer; 20. Fastener. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0038] In one embodiment of this utility model, such as Figure 1-5 As shown, an angle-adjusting transmission structure is provided, including a worktable 1, a first rotating shaft 2, a second rotating shaft 3, a linkage assembly 4, a positioning post 5, a connecting sleeve 6, and an elastic element 18. The first rotating shaft 2 and the second rotating shaft 3 are rotatably mounted on the worktable 1, and the second rotating shaft 3 is located on one side of the first rotating shaft 2; the linkage assembly 4 connects the first rotating shaft 2 and the second rotating shaft 3, and is used for the linkage rotation of the first rotating shaft 2 and the second rotating shaft 3; the positioning post 5 is located on the outer peripheral surface of the first rotating shaft 2; the connecting sleeve 6 is sleeved on the end of the first rotating shaft 2 and is detachably connected to the first rotating shaft 2; the end of the connecting sleeve 6 that is sleeved on the first rotating shaft 2 has an opening 7, the opening 7 is adapted to and engages with the positioning post 5, and the diameter of the opening 7 narrows from the outside to the inside in the axial direction of the connecting sleeve 6.

[0039] The elastic element 18, connected to the second rotating shaft 3 and the worktable 1, is used for the rotation and reset of the second rotating shaft 3. The elastic element 18 also acts as a preload to prevent the display screen from shaking or shifting due to its own weight or external impact, thus avoiding jamming or abnormal noise during angle adjustment. Through the continuous preload of the elastic element 18, the second rotating shaft 3, the linkage component 4, and the first rotating shaft 2 maintain a stable working relationship, ensuring the display screen can be securely stopped at different angles, improving the smoothness of the angle adjustment operation and its safety.

[0040] The angle-adjusting transmission structure provided by this utility model utilizes the snap-fit ​​engagement between the positioning pin 5 and the opening 7 of the connecting sleeve 6, with the opening 7 narrowing from the outside inwards, to form a reliable clamping structure. This effectively eliminates the gaps between components, significantly enhancing the structural connection rigidity. This results in a significant reduction in vibration during angle adjustment, effectively improving transmission stability and reducing motion deviation, thus achieving high-precision transmission. The elastic element 18 connects the second rotating shaft 3 to the worktable 1, forming an effective active compensation mechanism. This mechanism allows for rapid reset after the component rotates under force and also exhibits a reset tendency during operation, providing stable structural rigidity and further improving transmission accuracy.

[0041] The installation process of this embodiment is as follows: First, the first rotating shaft 2 and the second rotating shaft 3 are rotatably mounted on the worktable 1 via bearings to ensure accurate installation. Next, a linkage assembly 4 is installed between the first rotating shaft 2 and the second rotating shaft 3 to enable them to rotate synchronously. Then, the positioning pin 5 is fixedly set on the outer circumferential surface of the first rotating shaft 2. Next, the connecting sleeve 6 is fitted onto the end of the first rotating shaft 2, and the positioning pin 5 is inserted into the tapered opening 7 at the end of the connecting sleeve 6. The connecting sleeve 6 is then tightened and fixed to the end of the first rotating shaft 2. Since the opening 7 narrows from the outside to the inside, it will automatically press against the positioning pin 5, completing the tight fit between the two. Finally, the two ends of the elastic element 18 are connected between the second rotating shaft 3 and the worktable 1, and its tension is adjusted so that the second rotating shaft 3 can automatically reset after rotation.

[0042] This angle-adjusting transmission structure also includes a drive source 8. The drive end of the drive source 8 extends into the other end of the connecting sleeve 6 away from the first rotating shaft 2. The drive source 8 is used to drive the first rotating shaft 2 to rotate. The direct engagement between the drive end and the connecting sleeve 6, combined with the clamping structure between the positioning pin 5 and the opening 7 of the connecting sleeve 6, forms a stable power transmission path, reducing energy loss and transmission gap during power transmission, making the angle-adjusting movement smoother and more precise.

[0043] Preferred, such as Figure 1The linkage component 4 includes a first connecting tooth 401 and a second connecting tooth 402. The first connecting tooth 401 is sleeved on the axial surface of the first rotating shaft 2, and the second connecting tooth 402 is sleeved on the axial surface of the second rotating shaft 3. The first connecting tooth 401 and the second connecting tooth 402 mesh with each other. The linkage component 4, composed of the first connecting tooth 401 and the second connecting tooth 402, can maintain stable power transmission during angle adjustment, enhancing the overall rigidity and reliability of the transmission structure.

[0044] The angle adjustment process of this utility model is as follows: The drive source 8 is activated, and its drive end transmits power to the connecting sleeve 6. Since the connecting sleeve 6 and the first rotating shaft 2 are tightly connected through the clamping structure of the positioning pin 5 and the tapered opening 7, the first rotating shaft 2 rotates synchronously. At this time, the first connecting tooth 401 on the first rotating shaft 2 begins to rotate and meshes with the second connecting tooth 402, transmitting power to the second rotating shaft 3, causing it to rotate in conjunction, thereby achieving angle adjustment. When the angle is adjusted to the desired angle, the drive source 8 stops outputting power. At this time, the elastic element 18 (torsion spring) located between the second rotating shaft 3 and the worktable 1 uses its stored elastic potential energy to provide a restoring force to the second rotating shaft 3. Under the action of this elastic force, the second rotating shaft 3 rotates in the opposite direction, and through the meshing transmission of the second connecting tooth 402 and the first connecting tooth 401, transmits the rebound force to the first rotating shaft 2.

[0045] When this invention is installed on an office desk, the adjustable functional components should be connected to the first rotating shaft 2. By fixing these components to the first rotating shaft 2, the user can achieve precise angle adjustment by rotating the first rotating shaft 2.

[0046] During the angle adjustment process, the meshing transmission between the first connecting tooth 401 and the second connecting tooth 402 ensures the high synchronization of the two rotating shafts, effectively avoiding idle rotation and improving the angle adjustment accuracy. Simultaneously, the aforementioned tapered snap-fit ​​structure continuously eliminates the clearance between components, enhancing the overall structural rigidity and reducing vibration during operation. During the reset process, the reset force generated by the elastic element 18, transmitted through gear meshing, effectively compensates for the clearance between transmission components, further improving the return accuracy and transmission precision of the transmission system.

[0047] When the motor drives the second connecting tooth 402 to rotate, the reaction force of the elastic element 18 will push the second connecting tooth 402 towards the first connecting tooth 401 in advance, ensuring precise meshing of the teeth and reducing friction loss and power loss during meshing. For example, during the start-up phase of adjusting the display screen angle, the motor does not need to output additional force to eliminate the gap between the teeth, but only needs to overcome the effective resistance required for adjusting the display screen angle, thereby directly reducing the instantaneous energy consumption of the motor.

[0048] Specifically, the first connecting tooth 401 is connected to the first rotating shaft 2 via a fastener 20 and a spring washer 19. The fastener 20 is tightened onto the first rotating shaft 2, and the spring washer 19 is fitted onto the first rotating shaft 2, with its two ends abutting against the first connecting tooth 401 and the fastener 20, respectively. After the fastener 20 is tightened, the spring washer 19 generates a continuous elastic preload and damping force, which can balance the weight of the display screen itself, preventing it from falling due to gravity. This ensures that the display screen can be stably stopped at any angle during angle adjustment, improving the ease of operation and structural reliability during use.

[0049] like Figure 5 This angle-adjusting transmission structure also includes a positioning seat 9, positioned on the top surface of the worktable 1. A first rotating shaft 2 and a second rotating shaft 3 are rotatably mounted on one side of the positioning seat 9, and a linkage assembly 4 is mounted on the other side of the positioning seat 9. The positioning seat 9 provides a stable mounting reference for the first rotating shaft 2, the second rotating shaft 3, and the linkage assembly 4, limiting the radial and axial displacement of the shafts during operation and effectively reducing transmission errors caused by shaft wobbling. A through groove 10 is provided on the positioning seat 9. One end of an elastic element 18 is engaged in the through groove 10, and the other end of the elastic element 18 is engaged in the second rotating shaft 3. The through groove 10 provides precise positioning for the elastic element 18, ensuring that the elastic element 18 always provides a restoring force to the second rotating shaft 3 along a predetermined direction, preventing the elastic element 18 from shifting or twisting during operation, and ensuring the stability and reliability of the second rotating shaft 3's restoring process.

[0050] like Figure 1 This angle-adjusting transmission structure further includes a first positioning plate 11 and a second positioning plate 12, both disposed on the worktable 1. A first rotating shaft 2 is disposed between the positioning seat 9 and the first positioning plate 11, and a second rotating shaft 3 is disposed between the positioning seat 9 and the second positioning plate 12. During the angle adjustment process, the radial force, axial force, and torque borne by the two rotating shafts are distributed to the positioning seat 9 and the corresponding positioning plate, avoiding excessive load on a single component and ensuring stable operation of the structure.

[0051] Specifically, the first rotating shaft 2 is connected to the positioning seat 9 and the first positioning plate 11 respectively via a first washer 13, and the second rotating shaft 3 is connected to the positioning seat 9 and the second positioning plate 12 respectively via a second washer 14. The first washer 13 and the second washer 14 are respectively disposed on the rotating shaft and the positioning seat 9. The first washer 13 and the second washer 14 provide a large damping force, which, together with the pre-tightening effect of the spring washer 19, further enhances the resistance stability when the rotating shaft rotates, ensuring that the display screen can more stably maintain the preset position after angle adjustment.

[0052] Preferably, the second rotating shaft 3 has a positioning plate 15 on its shaft surface, and the positioning plate 15 has a bayonet 16. The two ends of the elastic element 18 are respectively engaged with the worktable 1 and the bayonet 16. The positioning plate 15 cooperates with the elastic element 18 through the bayonet 16 to provide precise positioning and stable connection for the elastic element 18, effectively preventing the elastic element 18 from shifting or loosening during the movement of the second rotating shaft 3, ensuring that the elastic element 18 stably performs its reset function, thereby improving the reliability of the angle adjustment transmission structure.

[0053] The angle-adjusting transmission structure also includes an electrical connection component 17, which is disposed on the worktable 1. The electrical connection component 17 is used to control the rotation of the first rotating shaft 2.

[0054] Specifically, such as Figure 1 The electrical connection assembly 17 includes a protruding edge 1701, an electrical connector 1702, and an electrical connector 1703. The protruding edge 1701 is disposed on the outer peripheral surface of the connecting sleeve 6, the electrical connector 1702 is fixedly disposed on the protruding edge 1701, and the electrical connectors 1703 are respectively positioned on both sides of the connecting sleeve 6. When the connecting sleeve 6 rotates with the first rotating shaft 2, it drives the electrical connector 1702 to rotate and contact any electrical connector 1703, forming an electrical signal path and preventing the first rotating shaft 2 from continuing to rotate.

[0055] The electrical connection component 17, through the cooperation of the protruding edge 1701, the electrical connector 1702 and the electrical connector 1703, enables the electrical signal path to be precisely triggered when the connecting sleeve 6 drives the electrical connector 1702 to rotate, thereby realizing automatic limit control of the rotation angle of the first rotating shaft 2, effectively avoiding over-adjustment, and effectively improving the automation level and angle control accuracy of the angle adjustment transmission structure.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. Angle-adjusting transmission structure, characterized in that, include: Workbench; The first rotating shaft and the second rotating shaft are rotatably mounted on the worktable, with the second rotating shaft located on one side of the first rotating shaft; A linkage component connects the first rotating shaft and the second rotating shaft, and the linkage component is used for the linkage rotation of the first rotating shaft and the second rotating shaft; A positioning post is disposed on the outer peripheral surface of the first rotating shaft; A connecting sleeve is fitted onto the end of the first rotating shaft and is detachably connected to the first rotating shaft; the end of the connecting sleeve fitted onto the first rotating shaft has an opening, the opening is adapted to and engaged with the positioning post, and the diameter of the opening narrows from the outside to the inside in the axial direction of the connecting sleeve.

2. The angle-adjusting transmission structure according to claim 1, characterized in that, The linkage component includes a first connecting tooth and a second connecting tooth. The first connecting tooth is sleeved on the axial surface of the first rotating shaft, and the second connecting tooth is sleeved on the axial surface of the second rotating shaft. The first connecting tooth and the second connecting tooth mesh with each other.

3. The angle-adjusting transmission structure according to claim 2, characterized in that, The first connecting tooth is connected to the first rotating shaft by a fastener and a spring washer. The fastener is screwed onto the first rotating shaft, and the spring washer is sleeved on the first rotating shaft. The two ends of the spring washer abut against the first connecting tooth and the fastener, respectively.

4. The angle-adjusting transmission structure according to any one of claims 1-3, characterized in that, The second rotating shaft has a positioning piece on its axial surface, and the positioning piece has a bayonet.

5. The angle-adjusting transmission structure according to any one of claims 1-3, characterized in that, It also includes a drive source, the drive end of which extends into the connecting sleeve at the other end away from the first rotating shaft, and the drive source is used to drive the first rotating shaft to rotate.

6. The angle-adjusting transmission structure according to any one of claims 1-3, characterized in that, It also includes an electrical connection assembly disposed on the worktable, the electrical connection assembly being used to control the rotation of the first rotating shaft.

7. The angle-adjusting transmission structure according to claim 6, characterized in that, The electrical connection assembly includes a flange, an electrical connector, and electrical connecting pieces. The flange is disposed on the outer peripheral surface of the connecting sleeve, the electrical connector is fixed to the flange, and the electrical connecting pieces are respectively positioned on both sides of the connecting sleeve. When the connecting sleeve rotates with the first rotating shaft, it drives the electrical connector to rotate and contact any of the electrical connecting pieces, forming an electrical signal path and preventing the first rotating shaft from continuing to rotate.

8. The angle-adjusting transmission structure according to any one of claims 1-3 or 7, characterized in that, It also includes a positioning seat, which is positioned on the top surface of the worktable. The first rotating shaft and the second rotating shaft are rotatably disposed on one side of the positioning seat, and the linkage component is disposed on the other side of the positioning seat. A through groove is provided on the positioning seat.

9. The angle-adjusting transmission structure according to claim 8, characterized in that, It also includes a first positioning plate and a second positioning plate, both of which are disposed on the worktable. The first rotating shaft is disposed between the positioning seat and the first positioning plate, and the second rotating shaft is disposed between the positioning seat and the second positioning plate.

10. The angle-adjusting transmission structure according to claim 9, characterized in that, The first rotating shaft is connected to the positioning seat and the first positioning plate respectively through a first gasket, and the second rotating shaft is connected to the positioning seat and the second positioning plate respectively through a second gasket.

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